D'Addario PB049 Guitar string

Phosphor Bronze Single String for Acoustic Guitar

The D'Addario PB049 is a single replacement string designed for steel-string acoustic guitars, wound with corrosion-resistant phosphor bronze over a carefully drawn hexagonal steel core. At .049" gauge, it is typically used as a low-end string in custom gauge sets or as a direct replacement for a worn or broken string on an existing set. Phosphor Bronze has been D'Addario's flagship acoustic string alloy since 1974, prized for its warm, bright, and well-balanced tone. This single-string format lets players replace just the string they need without buying a full set, or build a custom gauge combination tailored to their playing style. All D'Addario strings are designed, engineered, and manufactured in the USA at the company's New York production facility.

Technical Specifications

• Gauge: .049" / 1.24 mm
• Material: Phosphor Bronze wrap over steel core
• Core: Steel (hexagonal)
• Winding Type: Round Wound
• Ending: Ball End
• Finish: Coated
• Number of Strings: 1
• Set Type: Singles
• Compatible With: Acoustic Guitar
• Country of Manufacture: USA

Who It's For

This single string is the right choice for acoustic guitar players who need a .049" gauge replacement without buying a full set. It suits players building custom gauge combinations — for example, mixing heavier low-end strings with lighter trebles for dropped tunings or alternate tuning setups. The phosphor bronze wrap delivers a warm, bright, well-balanced tone that works across genres including folk, country, bluegrass, and singer-songwriter styles. The ball-end design ensures quick and secure installation at the bridge, and the hexagonal steel core provides tuning stability and consistent intonation. Whether replacing a broken low E or A string, or assembling a personalized set, this PB049 offers the same trusted build quality found across the full Phosphor Bronze series.